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LM138K Arkusz danych(PDF) 3 Page - National Semiconductor (TI) |
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LM138K Arkusz danych(HTML) 3 Page - National Semiconductor (TI) |
3 / 16 page Electrical Characteristics (Continued) Symbol Parameter Conditions LM338 Units Min Typ Max ∆V R/T Temperature Stability T MIN ≤ TJ ≤ TMAX 1 % I LOAD(Min) Minimum Load Current V IN −VOUT = 35V 3.5 10 mA I CL Current Limit V IN −VOUT ≤ 10V DC 58 A 0.5 ms Peak 712 A V IN −VOUT = 30V 1 A V N RMS Output Noise, % of V OUT 10 Hz ≤ f ≤ 10 kHz 0.003 % Ripple Rejection Ratio V OUT = 10V, f = 120 Hz, CADJ = 0µF 60 dB V OUT = 10V, f = 120 Hz, CADJ = 10 µF 60 75 dB Long-Term Stability T J = 125˚C, 1000 hrs 0.3 1 % θ JC Thermal Resistance K Package 1 ˚C/W Junction to Case T Package 4 ˚C/W θ JA Thermal Resistance, Junction to K Package 35 ˚C/W Ambient (No Heat Sink) T Package 50 ˚C/W Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is in- tended to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. Note 2: These specifications are applicable for power dissipations up to 50W for the TO-3 (K) package and 25W for the TO-220 (T) package. Power dissipation is guaranteed at these values up to 15V input-output differential. Above 15V differential, power dissipation will be limited by internal protection circuitry. All limits (i.e., the numbers in the Min. and Max. columns) are guaranteed to National’s AOQL (Average Outgoing Quality Level). Note 3: Regulation is measured at a constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specifications for thermal regulation. Note 4: Refer to RETS138K drawing for military specifications of LM138K. Typical Performance Characteristics Current Limit DS009060-32 Current Limit DS009060-33 Current Limit DS009060-34 Load Regulation DS009060-35 Dropout Voltage DS009060-36 Adjustment Current DS009060-37 www.national.com 3 |
Podobny numer części - LM138K |
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Podobny opis - LM138K |
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